NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.35 [2006] >
IJMS Vol.35(3) [September 2006] >


Title: Biosorption studies for removal of chromium using immobilized marine alga Isochrysis galbana
Authors: Kumar, K. Kishore
Prasad, M. Krishna
Sarma, G.V.S.
Murthy, Ch.V.R.
Keywords: Biosorption
Chromium
Isochrysis galbana
Immobilization
Alga
Issue Date: Sep-2006
Publisher: CSIR
Abstract: A new biosorbent material marine micro alga Isochrysis galbana, from marine sources Bay of Bengal, was immobilized and used as an adsorbent for removal of chromium. It was found that the increase in aqueous metal concentration increased metal uptake within the range of present study. The presence of acid decreased metal uptake probably due to the preferential adsorption of hydrogen ion compared to chromium ion. The immobilized calcium alginate beads were also found to adsorb chromium in absence of biomass as well and presence of biomass increased the metal adsorption by 3-4 fold. This immobilized biomass was very effective for the removal of chromium. Isochrysis galbana was found to adsorb chromium more strongly when compared to another marine micro alga, Chaetoceros calcitrans, probably due to presence of polysilicate layers over Chaetoceros cells and also due to larger size of Chaetoceros cells. Equilibrium distribution data were best correlated by Freundlich type of equation for the range of experimental parameters covered in the present study. An empirical equation was proposed to estimate the equilibrium metal concentration in the immobilized algal beads (CS) as a function of pH and aqueous metal concentration (CA).
Page(s): 263-267
ISSN: 0379-5136
Source: IJMS Vol.35(3) [September 2006]

Files in This Item:

File Description SizeFormat
IJMS 35(3) 263-267.pdf111.64 kBAdobe PDFView/Open
 Current Page Visits: 1227 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 574424 since 06-Feb-2009  Last updated on 26-Aug-2014Webmaster: nopr@niscair.res.in